Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quem patrocina o Middlesbrough?
 ###Tabelas: CREATE TABLE personnel_and_kits (personnel_and_kits_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Manager VARCHAR, Captain VARCHAR, Kit maker VARCHAR, Shirt sponsor VARCHAR) CREATE TABLE round_three (round_three_id AUTO_INCREMENT PRIMARY KEY, Pick # INT, Player VARCHAR, Position VARCHAR, Nationality VARCHAR, NHL team VARCHAR, College/junior/club team VARCHAR) CREATE TABLE indianapolis_500 (indianapolis_500_id AUTO_INCREMENT PRIMARY KEY, Year INT, Chassis VARCHAR, Engine VARCHAR, Start INT, Finish INT, Entrant VARCHAR) CREATE TABLE pdc_premier_event_finals:_5_1_title_4_runner-ups (pdc_premier_event_finals:_5_1_title_4_runner-ups_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Year INT, Championship VARCHAR, Opponent in the final VARCHAR, Score (l) = score in legs, (s) = score in sets. VARCHAR) CREATE TABLE winter_1997-1998 (winter_1997-1998_id AUTO_INCREMENT PRIMARY KEY, 7:30 am VARCHAR, 8:00 am VARCHAR, 9:00 am VARCHAR, 11:00 am VARCHAR, noon VARCHAR, 12:30 pm VARCHAR, 1:00 pm VARCHAR, 1:30 pm VARCHAR, 2:00 pm VARCHAR, 3:00 pm VARCHAR, 3:30 pm VARCHAR, 5:00 pm VARCHAR, 6:30 pm VARCHAR)  
SELECT Shirt sponsor FROM personnel_and_kits WHERE Team = middlesbrough